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CENELEC
EN 60641-2:2004

EN 60641-2:2004

Current

Current

The latest, up-to-date edition.

Pressboard and presspaper for electrical purposes - Part 2: Methods of tests

Published date

15-10-2004

Publisher

European Committee for Standards - Electrical

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Foreword
1 Scope
2 Normative references
3 Terms and definitions
4 General notes on tests
   4.1 Conditioning
   4.2 Drying
   4.3 Tolerances
   4.4 Results
5 Thickness
   5.1 Test apparatus
   5.2 Setting gauge
   5.3 Procedure
   5.4 Results
6 Apparent density
7 Tensile strength and elongation
   7.1 Principle
   7.2 Determination with non-folded test pieces
   7.3 Determination with folded test pieces
8 Internal tearing resistance
9 Edge tearing resistance
   9.1 Procedure
   9.2 Results
10 Compressibility
   10.1 Principle
   10.2 Test apparatus
   10.3 Test pieces
   10.4 Procedure
   10.5 Results
11 Shrinkage
   11.1 Test apparatus
   11.2 Test pieces
   11.3 Procedure
   11.4 Results
12 Plybond resistance
   12.1 Principle
   12.2 Test pieces
   12.3 Test apparatus
   12.4 Test method
   12.5 Results
13 Moisture content
14 Ash content
   15.1 Test apparatus
   15.2 Procedure
   15.3 Results
16 pH of aqueous extract
   16.1 Test apparatus
   16.2 Procedure
   16.3 Results
17 Oil absorption
   17.1 Test pieces
   17.2 Procedure
   17.3 Results
18 Conducting paths
19 Presence of metallic particles
   19.1 Chemical methods
   19.2 X-ray method
20 Electric strength
   20.1 Test apparatus
   20.2 Test pieces for test in air
   20.3 Test pieces for test in oil
   20.4 Test pieces for testing after folding
   20.5 Number of tests
   20.6 Procedure
   20.7 Results
Annex ZA (normative) Normative references to international
         publications with their corresponding European
         publications
Bibliography

Applies to pressboard and presspaper for electrical purposes. The series does not apply to laminated material. This part specifies the test methods to be used in testing pressboard and presspaper for electrical purposes to meet the requirements prescribed in the specification sheets of Part 3. NOTE In this standard, reference is made in several places to ISO standards accompanied by a short description of the method used. It is to be understood that this short description is meant for identification purposes only and that all details should be taken from the ISO standard itself. The main changes with respect to the previous edition are listed below: The following test methods have been cancelled: - Flexibility - Conductivity of the organic extract - Contamination of liquid dielectrics The following test methods have been rewritten: - Compressibility - Conductivity of the aqueous extract - Cohesion between plies The following test method has introduced: - Determination of metallic particles with X-ray.

Committee
CLC/SR 15
DevelopmentNote
Supersedes HD 410.2 (05/2001) Supersedes UNE EN 60641-2. (09/2007)
DocumentType
Standard
PublisherName
European Committee for Standards - Electrical
Status
Current
Supersedes

CEI EN 61629-2 : 1999 ARAMID PRESSBOARD FOR ELECTRICAL PURPOSES - PART 2: METHODS OF TESTS
BS EN 60641-3-1:2008 Pressboard and presspaper for electrical purposes Specifications for individual materials - Requirements for pressboard, types B.0.1, B.0.3, B.2.1, B.2.3, B.3.1, B.3.3, B.4.1, B.4.3, B.5.1, B.5.3 and B.6.1
BS EN 61628-2:1999 Corrugated pressboard and presspaper for electrical purposes Methods of test
CEI EN 60763-2 : 2007 SPECIFICATION FOR LAMINATED PRESSBOARD - PART 2: METHODS OF TEST
I.S. EN 60763-2:2007 SPECIFICATION FOR LAMINATED PRESSBOARD - PART 2: METHODS OF TEST
DIN EN 61628-1 : 1999 CORRUGATED PRESSBOARD AND PRESSPAPER FOR ELECTRICAL PURPOSES - PART 1: DEFINITIONS, DESIGNATIONS AND GENERAL REQUIREMENTS
DIN EN 60763-2 : 2007 SPECIFICATION FOR LAMINATED PRESSBOARD - PART 2: METHODS OF TEST
I.S. EN 61628-1:1999 CORRUGATED PRESSBOARD AND PRESSPAPER FOR ELECTRICAL PURPOSES - PART 1: DEFINITIONS, DESIGNATIONS AND GENERAL REQUIREMENTS
BS EN 60641-3-2:2008 Pressboard and presspaper for electrical purposes Specifications for individual materials - Requirements for presspaper, types P.2.1, P.4.1, P.4.2, P.4.3, and P.6.1
I.S. EN 60641-3-2:2008 PRESSBOARD AND PRESSPAPER FOR ELECTRICAL PURPOSES - PART 3: SPECIFICATIONS FOR INDIVIDUAL MATERIALS - SHEET 2: REQUIREMENTS FOR PRESSPAPER, TYPES P.2.1, P.4.1, P.4.2, P.4.3 AND P.6.1
BS EN 61628-1:1998 Corrugated pressboard and presspaper for electrical purposes Definitions, designations and general requirements
CEI EN 60641-3-1 : 2010 PRESSBOARD AND PRESSPAPER FOR ELECTRICAL PURPOSES - PART 3: SPECIFICATIONS FOR INDIVIDUAL MATERIALS SHEET 1: REQUIREMENTS FOR PRESSBOARD, TYPES B.0.1, B.0.3, B.2.1, B.2.3, B.3.1, B.3.3, B.4.1, B.4.3, B.5.1, B.5.3 AND B.6.1
I.S. EN 60641-3-1:2008 PRESSBOARD AND PRESSPAPER FOR ELECTRICAL PURPOSES - PART 3: SPECIFICATIONS FOR INDIVIDUAL MATERIALS - SHEET 1: REQUIREMENTS FOR PRESSBOARD, TYPES B.0.1, B.0.3, B.2.1, B.2.3, B.3.1, B.3.3, B.4.1, B.4.3, B.5.1, B.5.3 AND B.6.1
CEI EN 60641-3-2 : 2010 SPECIFICATION FOR PRESSBOARD AND PRESSPAPER FOR ELECTRICAL PURPOSES - PART 3: SPECIFICATIONS FOR INDIVIDUAL MATERIALS - SHEET 2: REQUIREMENTS FOR PRESSPAPER, TYPES P.2.1, P.4.1, P.4.2, P.4.3 AND P.6.1
BS EN 60763-2:2007 Specification for laminated pressboard Methods of test
VDE 0313-1 : 1999 CORRUGATED PRESSBOARD AND PRESSPAPER FOR ELECTRICAL PURPOSES - DEFINITIONS, DESIGNATIONS AND GENERAL REQUIREMENTS
I.S. EN 61628-2:1999 CORRUGATED PRESSBOARD AND PRESSPAPER FOR ELECTRICAL PURPOSES - PART 2: METHODS OF TEST
EN 60763-2:2007 Specification for laminated pressboard - Part 2: Methods of test
EN 61628-2:1999/A1:2007 CORRUGATED PRESSBOARD AND PRESSPAPER FOR ELECTRICAL PURPOSES - PART 2: METHODS OF TEST
EN 61628-1:1997 Corrugated pressboard and presspaper for electrical purposes - Part 1: Definitions, designations and general requirements
EN 60641-3-1:2008 Pressboard and presspaper for electrical purposes - Part 3: Specifications for individual materials - Sheet 1: Requirements for pressboard, types B.0.1, B.0.3, B.2.1, B.2.3, B.3.1, B.3.3, B.4.1, B.4.3, B.5.1, B.5.3 and B.6.1
EN 60641-3-2:2008 Pressboard and presspaper for electrical purposes - Part 3: Specifications for individual materials - Sheet 2: Requirements for presspaper, types P.2.1, P.4.1, P.4.2, P.4.3 and P.6.1

IEC 60243-1:2013 Electric strength of insulating materials - Test methods - Part 1: Tests at power frequencies
EN 20534 : 1993 PAPER AND BOARD - DETERMINATION OF THICKNESS AND APPARENT BULK DENSITY OR APPARENT SHEET DENSITY
ISO 1974:2012 Paper — Determination of tearing resistance — Elmendorf method
IEC 60250:1969 Recommended methods for the determination of the permittivity and dielectric dissipation factor of electrical insulating materials at power, audio and radio frequencies including metre wavelengths
EN 20287 : 1994 PAPER AND BOARD - DETERMINATION OF MOISTURE CONTENT - OVEN DRYING METHOD
EN 21974:1994 Paper - Determination of tearing resistance (Elmendorf method) (ISO 1974:1990)
IEC 60296:2012 RLV Fluids for electrotechnical applications - Unused mineral insulating oils for transformers and switchgear
EN ISO 1924-2:2008 Paper and board - Determination of tensile properties - Part 2: Constant rate of elongation method (20 mm/min) (ISO 1924-2:2008)
IEC 60554-2:2001 Cellulosic papers for electrical purposes - Part 2: Methods of test
ISO 2144:2015 Paper, board and pulps Determination of residue (ash) on ignition at 900 degrees C
EN 60554-2:2002 Cellulosic papers for electrical purposes - Part 2: Methods of test
ISO 186:2002 Paper and board — Sampling to determine average quality
EN 60296:2012 Fluids for electrotechnical applications - Unused mineral insulating oils for transformers and switchgear
ISO 1924-2:2008 Paper and board — Determination of tensile properties — Part 2: Constant rate of elongation method (20 mm/min)
EN 60243-1:2013 ELECTRIC STRENGTH OF INSULATING MATERIALS - TEST METHODS - PART 1: TESTS AT POWER FREQUENCIES (IEC 60243-1:2013)
ISO 287:2017 Paper and board — Determination of moisture content of a lot — Oven-drying method
ISO 534:2011 Paper and board — Determination of thickness, density and specific volume
IEC 60247:2004 Insulating liquids - Measurement of relative permittivity, dielectric dissipation factor (tan d) and d.c. resistivity

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